Blender 2.8 alt f (focus on object) not working
In 2.79, &#9095; AltF focussed on the mouse position by default while the Shortcut for view selected is NumpadPeriod.



In 2.8 they shortcuts are


View Select NumpadPeriod (unchanged)
Center View to Mouse &#9095; Alt MMB


You can change the mapping in the User Preferences.